I hate my stepdad?

He’s ugly, dumb and childish. He acts more like my mom’s son than her husband. My mom does all the housework while working full time. She takes care of everything, because he can’t even drive or solve a tiny thing! I know it’s her choice, but i can’t stop getting annoyed in my head. I call him dad, but he was never there when i needed emotional support nor gave me money. He likes to tease me in a non pleasant way and gives me attitude when me and my mom have an argument.
I’ve talked to my mom. She is being defensive and said i should be thankful to him. What should I be thankful for?
I hate my stepdad?
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